We're happy to announce the 8th backport release in the Quincy series. https://ceph.io/en/news/blog/2024/v17-2-8-quincy-released/ v17.2.8 will have RPM/centos 9 packages instead of RPM/centos 8 built. v17.2.8 container images, now based on CentOS 9, may be incompatible on older kernels (e.g., Ubuntu 18.04) due to differences in thread creation methods. Users upgrading to v17.2.8 container images with older OS versions may encounter crashes during `pthread_create`. However, we recommend upgrading your OS to avoid this unsupported combination. Users should expect to see the el8 rpm subdirectory empty and the "dnf" commands are expected to fail with 17.2.8. They can choose to use 17.2.8 RPM packages for centos 8/el8 provided by CERN as a community member or continue to stay at 17.2.7 following instructions from https://docs.ceph.com/en/latest/install/get-packages/#rhel, the ceph.repo file should point to https://download.ceph.com/rpm-17.2.7/el8 instead of https://download.ceph.com/rpm-quincy/el8 These CERN packages come with no warranty and have not been tested. The software in them has been tested by Ceph according to [platforms](https://docs.ceph.com/en/latest/start/os-recommendations/#platforms). The repository for el8 builds is hosted by CERN on [Linux @ CERN](https://linuxsoft.cern.ch/repos/ceph-ext-quincy8el-stable/). The public part of the GPG key used to sign the packages is available at [RPM-GPG-KEY-Ceph-Community](https://linuxsoft.cern.ch/repos/RPM-GPG-KEY-Ceph-Community). Notable Changes --------------- * RADOS: `get_pool_is_selfmanaged_snaps_mode` C++ API has been deprecated due to being prone to false negative results. It's safer replacement is `pool_is_in_selfmanaged_snaps_mode`. * RBD: When diffing against the beginning of time (`fromsnapname == NULL`) in fast-diff mode (`whole_object == true` with `fast-diff` image feature enabled and valid), diff-iterate is now guaranteed to execute locally if exclusive lock is available. This brings a dramatic performance improvement for QEMU live disk synchronization and backup use cases. * RBD: The option ``--image-id`` has been added to `rbd children` CLI command, so it can be run for images in the trash. * RBD: `RBD_IMAGE_OPTION_CLONE_FORMAT` option has been exposed in Python bindings via `clone_format` optional parameter to `clone`, `deep_copy` and `migration_prepare` methods. * RBD: `RBD_IMAGE_OPTION_FLATTEN` option has been exposed in Python bindings via `flatten` optional parameter to `deep_copy` and `migration_prepare` methods. Getting Ceph ------------ * Git at git://github.com/ceph/ceph.git * Tarball at https://download.ceph.com/tarballs/ceph-17.2.8.tar.gz * Containers at https://quay.io/repository/ceph/ceph * For packages, see https://docs.ceph.com/en/latest/install/get-packages/ * Release git sha1: f817ceb7f187defb1d021d6328fa833eb8e943b3